<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }"
				>首页</el-breadcrumb-item
			>
			<el-breadcrumb-item>用户管理</el-breadcrumb-item>
			<el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>

		<!-- 卡片视图区 -->
		<el-card>
			<!-- 搜索与添加区域 -->

			<el-row :gutter="20">
				<el-col :span="8">
					<el-input
						placeholder="请输入内容"
						v-model="queryInfo.query"
						clearable
						@clear="getUserList"
					>
						<el-button
							slot="append"
							icon="el-icon-search"
							@click="getUserList"
						></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible = true"
						>添加用户</el-button
					>
				</el-col>
			</el-row>

			<!-- 用户列表区 -->
			<el-table :data="userlist" border stripe>
				<el-table-column type="index" label="#"></el-table-column>
				<el-table-column label="姓名" prop="username"></el-table-column>
				<el-table-column label="邮箱" prop="email"></el-table-column>
				<el-table-column label="电话" prop="mobile"></el-table-column>
				<el-table-column
					label="角色"
					prop="role_name"
				></el-table-column>
				<el-table-column label="状态">
					<template slot-scope="scope">
						<el-switch
							v-model="scope.row.mg_state"
							@change="userStateChanged(scope.row)"
						>
						</el-switch>
					</template>
				</el-table-column>

				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<!-- 修改按钮 -->
						<el-tooltip
							effect="dark"
							content="修改"
							placement="top"
							:enterable="false"
						>
							<el-button
								type="primary"
								icon="el-icon-edit"
								size="mini"
								@click="showEditDialog(scope.row.id)"
							></el-button>
						</el-tooltip>
						<!-- 删除按钮 -->
						<el-tooltip
							effect="dark"
							content="删除"
							placement="top"
							:enterable="false"
						>
							<el-button
								type="danger"
								icon="el-icon-delete"
								size="mini"
								@click="removeUserById(scope.row.id)"
							></el-button>
						</el-tooltip>
						<!-- 分配角色按钮 -->
						<el-tooltip
							effect="dark"
							content="分配角色"
							placement="top"
							:enterable="false"
						>
							<el-button
								type="warning"
								icon="el-icon-setting"
								size="mini"
								@click="setRole(scope.row)"
							></el-button>
						</el-tooltip>
					</template>
				</el-table-column>
			</el-table>

			<!-- 分页区域 -->
			<el-pagination
				@size-change="handleSizeChange"
				@current-change="handleCurrentChange"
				:current-page="queryInfo.pagenum"
				:page-sizes="[1, 2, 5, 10]"
				:page-size="queryInfo.pagesize"
				layout="total, sizes, prev, pager, next, jumper"
				:total="total"
			>
			</el-pagination>
		</el-card>

		<!-- 添加用户的对话框 -->
		<el-dialog
			title="添加用户"
			:visible.sync="addDialogVisible"
			width="50%"
			@close="addDialogClosed"
		>
			<!-- 内容主体区 -->
			<el-form
				:model="addForm"
				:rules="addFormRules"
				ref="addFormRef"
				label-width="70px"
			>
				<el-form-item label="用户名" prop="username">
					<el-input v-model="addForm.username"></el-input>
				</el-form-item>
				<el-form-item label="密码" prop="password">
					<el-input v-model="addForm.password"></el-input>
				</el-form-item>
				<el-form-item label="邮箱" prop="email">
					<el-input v-model="addForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
					<el-input v-model="addForm.mobile"></el-input>
				</el-form-item>
			</el-form>
			<!-- 底部区域 -->
			<span slot="footer" class="dialog-footer">
				<el-button @click="addDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="addUser">确 定</el-button>
			</span>
		</el-dialog>

		<!-- 修改用户的对话框 -->
		<el-dialog
			title="修改用户"
			:visible.sync="editDialogVisible"
			width="50%"
			@close="editDialogClosed"
		>
			<el-form
				:model="editForm"
				:rules="editFormRules"
				ref="editFormRef"
				label-width="70px"
			>
				<el-form-item label="用户名">
					<el-input v-model="editForm.username" disabled></el-input>
				</el-form-item>
				<el-form-item label="邮箱" prop="email">
					<el-input v-model="editForm.email"></el-input>
				</el-form-item>
				<el-form-item label="手机" prop="mobile">
					<el-input v-model="editForm.mobile"></el-input>
				</el-form-item>
			</el-form>

			<span slot="footer" class="dialog-footer">
				<el-button @click="editDialogVisible = false">取 消</el-button>
				<el-button type="primary" @click="editUserInfo"
					>确 定</el-button
				>
			</span>
		</el-dialog>

		<!-- 分配角色的对话框 -->
		<el-dialog
			title="分配角色"
			:visible.sync="setRoleDialogVisible"
			width="50%"
			@close="setRoleDialogClosed"
		>
			<div>
				<p>当前的用户: {{ userInfo.username }}</p>
				<p>当前的角色: {{ userInfo.role_name }}</p>
				<p>
					分配新角色:
					<el-select v-model="selectedRoleId" placeholder="请选择">
						<el-option
							v-for="item in rolesList"
							:key="item.id"
							:label="item.roleName"
							:value="item.id"
						>
						</el-option>
					</el-select>
				</p>
			</div>
			<span slot="footer" class="dialog-footer">
				<el-button @click="setRoleDialogVisible = false"
					>取 消</el-button
				>
				<el-button type="primary" @click="saveRoleInfo"
					>确 定</el-button
				>
			</span>
		</el-dialog>
	</div>
</template>

<script>
export default {
	data() {
		// 验证邮箱的规则
		let checkEmail = (rule, value, cb) => {
			// 验证邮箱的正则表达式
			const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
			if (regEmail.test(value)) {
				// 合法的邮箱
				return cb();
			}

			cb(new Error('请输入合法的邮箱'));
		};

		// 验证手机号的规则
		let checkMobile = (rule, value, cb) => {
			// 验证手机号的正则
			const regMobile = /^1[3-9]\d{9}$/;
			if (regMobile.test(value)) {
				return cb();
			}
			cb(new Error('请输入合法的手机号'));
		};

		return {
			// 获取用户列表的参数对象
			queryInfo: {
				query: '',
				// 当前的 页数
				pagenum: 1,
				// 当前每页显示多少条数据
				pagesize: 2,
			},
			userlist: [],
			total: 0,
			// 控制添加用户对话框的显示与隐藏
			addDialogVisible: false,
			// 添加用户的表单数据
			addForm: {
				username: '',
				password: '',
				email: '',
				mobile: '',
			},
			// 添加表单的验证规则对象
			addFormRules: {
				username: [
					{
						required: true,
						message: '请输入用户名',
						trigger: 'blur',
					},
					{
						min: 3,
						max: 10,
						message: '用户名的长度在3~10个字符之间',
						trigger: 'blur',
					},
				],
				password: [
					{
						required: true,
						message: '请输入密码',
						trigger: 'blur',
					},
					{
						min: 6,
						max: 15,
						message: '密码的长度在6~15个字符之间',
						trigger: 'blur',
					},
				],
				email: [
					{
						required: true,
						message: '请输入邮箱',
						trigger: 'blur',
					},
					{
						validator: checkEmail,
						trigger: 'blur',
					},
				],
				mobile: [
					{
						required: true,
						message: '请输入手机号',
						trigger: 'blur',
					},
					{
						validator: checkMobile,
						trigger: 'blur',
					},
				],
			},
			// 控制修改用户对话框的显示与隐藏
			editDialogVisible: false,
			// 查询到的用户信息对象
			editForm: {},
			// 修改表单的验证规则对象
			editFormRules: {
				email: [
					{
						required: true,
						message: '请输入用户邮箱',
						trigger: 'blur',
					},
					{
						validator: checkEmail,
						trigger: 'blur',
					},
				],
				mobile: [
					{
						required: true,
						message: '请输入用户的手机',
						trigger: 'blur',
					},
					{
						validator: checkMobile,
						trigger: 'blur',
					},
				],
			},
			// 控制分配橘色对话框的显示与隐藏
			setRoleDialogVisible: false,
			// 需要被分配角色的用户信息
			userInfo: {},
			// 所有角色的数据列表
			rolesList: [],
			// 已选中的角色ID值
			selectedRoleId: '',
		};
	},
	created() {
		this.getUserList();
	},
	methods: {
		// 刷新数据请求
		async getUserList() {
			const { data: res } = await this.$http.get('users', {
				params: this.queryInfo,
			});
			if (res.meta.status !== 200) {
				return $message.error('获取用户列表失败');
			}
			this.userlist = res.data.users;
			this.total = res.data.total;
			console.log(res);
		},
		// 监听 pagesize 改变的事件
		handleSizeChange(newSize) {
			// console.log(newSize);
			this.queryInfo.pagesize = newSize;
			this.getUserList();
		},
		// 监听 页码值 改变的事件
		handleCurrentChange(newPage) {
			console.log(newPage);
			this.queryInfo.pagenum = newPage;
			this.getUserList();
		},
		// 监听 switch 开关状态的改变
		async userStateChanged(userinfo) {
			console.log(userinfo);
			const { data: res } = await this.$http.put(
				`users/${userinfo.id}/state/${userinfo.mg_state}`
			);
			if (res.meta.status !== 200) {
				userinfo.mg_state = !userinfo.mg_state;
				return $$message.error('更新用户状态失败');
			}
			this.$message.success('更新用户状态成功');
		},
		// 监听添加用户对话框的关闭事件
		addDialogClosed() {
			this.$refs.addFormRef.resetFields();
		},
		// 点击按钮, 添加新用户
		addUser() {
			this.$refs.addFormRef.validate(async (valid) => {
				if (!valid) return;
				// 可以发起添加用户的网络请求
				const { data: res } = await this.$http.post(
					'users',
					this.addForm
				);
				if (res.meta.status !== 201) {
					this.$message.error('添加用户失败');
				}
				this.$message.success('添加用户成功');
				// 隐藏添加用户的对话框
				this.addDialogVisible = false;
				// 重新获取用户列表数据
				this.getUserList();
			});
		},
		// 展示编辑用户的对话框
		async showEditDialog(id) {
			// console.log(id);
			const { data: res } = await this.$http.get('users/' + id);

			if (res.meta.status !== 200) {
				return this.$message.error('查询用户失败');
			}
			this.editForm = res.data;
			this.editDialogVisible = true;
		},
		// 监听修改用户对话框的关闭事件
		editDialogClosed() {
			this.$refs.editFormRef.resetFields();
		},
		// 修改用户信息并提交
		editUserInfo() {
			this.$refs.editFormRef.validate(async (valid) => {
				if (!valid) return;
				// 发起修改用户信息的数据请求
				const { data: res } = await this.$http.put(
					'users/' + this.editForm.id,
					{ email: this.editForm.email, mobile: this.editForm.mobile }
				);
				if (res.meta.status !== 200) {
					return this.$message.error('更新用户信息失败');
				}

				// 关闭对话框
				this.editDialogVisible = false;
				// 刷新数据列表
				this.getUserList();
				// 提示修改成功
				this.$message.success('更新用户信息成功');
			});
		},
		// 根据id删除对应的用户信息
		async removeUserById(id) {
			// 弹框询问用户是否删除数据
			const confirmResult = await this.$confirm(
				'此操作将永久删除该该用户, 是否继续?',
				'提示',
				{
					confirmButtonText: '确定',
					cancelButtonText: '取消',
					type: 'warning',
				}
			).catch((err) => err);
			//如果用户确认删除, 则返回值为字符串 confirm
			// 如果用户取消了删除, 则返回值为字符串 cancel
			// console.log(confirmResult);
			if (confirmResult !== 'confirm') {
				return this.$message.info('已经取消删除');
			}
			const { data: res } = await this.$http.delete('users/' + id);
			if (res.meta.status !== 200) {
				return this.$message.error('删除用户失败');
			}
			this.$message.success('删除用户成功');
			this.getUserList();
		},
		// 展示分配橘色的对话框
		async setRole(userInfo) {
			this.userInfo = userInfo;

			// 在展示对话框之前, 获取所有角色的列表
			const { data: res } = await this.$http.get('roles');
			if (res.meta.status !== 200) {
				return this.$message.error('获取角色列表');
			}

			this.rolesList = res.data;

			this.setRoleDialogVisible = true;
		},
		// 点击按钮, 分配角色
		async saveRoleInfo() {
			if (!this.selectedRoleId) {
				return this.$message.error('请选择要分配的角色');
			}
			const { data: res } = await this.$http.put(
				`users/${this.userInfo.id}/role`,
				{ rid: this.selectedRoleId }
			);

			if (res.meta.status !== 200) {
				return this.$message.error('更新角色失败');
			}

			this.$message.success('更新角色成功');
			this.getUserList();
			this.setRoleDialogVisible = false;
		},
		// 监听分配角色对话框的关闭事件
		setRoleDialogClosed() {
			this.selectedRoleId = '';
			this.userInfo = '';
		},
	},
};
</script>

<style lang="scss" scoped></style>
